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Title:
NONCOMBUSTIBLE ELECTRIC WAVE ABSORBING BOARD
Document Type and Number:
Japanese Patent JP2008130749
Kind Code:
A
Abstract:

To provide a noncombustible radio wave absorbing board which is excellent in terms of capability to absorb a radio wave near the frequency of 5.8 GHz band, which is suitable for the ceiling member, the side surface wall, and the like of a toll gate using an ETC system and a DSRC system, for example, the weight of which is light, and which is excellent in terms of workability and transportability.

A noncombustible radio wave absorbing board 1 comprises an electric resistance layer 11, a silicic acid calcium board 10, and a radio wave reflector 12 provided sequentially from a side from which a radio wave enters.


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Inventors:
KUROKI TOSHIHIRO
Application Number:
JP2006313009A
Publication Date:
June 05, 2008
Filing Date:
November 20, 2006
Export Citation:
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Assignee:
KONOSHIMA CHEMICAL
International Classes:
H05K9/00; E04B1/92
Domestic Patent References:
JP2000068674A2000-03-03
JP2001262732A2001-09-26
JP2004003272A2004-01-08
JP2003229693A2003-08-15
JP2005244160A2005-09-08
Attorney, Agent or Firm:
Intellectual Property Office
Kinoshita Minoru
Kanji Nakayama
Tsuyoshi Ishizaki



 
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